Results 21 to 30 of about 1,642 (229)
DiversityWe examine the distribution, habitat association, morphometrics, meristics, and reproductive attributes of Amblyraja radiata over much of its Canadian range, Grand Banks to Arctic waters.
David W. Kulka +3 more
doaj +2 more sources
Journal of Fish BiologyElasmobranch populations are in steep decline mainly due to overfishing bycatch, but parasites may accelerate the collapse of vulnerable and/or highly parasitized species.
Claudia Gérard
exaly +2 more sources
, 2018 Published as part of Biscoito, Manuel, Ribeiro, Cláudia & Freitas, Mafalda, 2018, Annotated checklist of the fishes of the archipelago of Madeira (NE Atlantic): I-Chondrichthyes, pp. 459-494 in Zootaxa 4429 (3) on pages 476-480, DOI: 10.11646/zootaxa.4429.3.2, http://zenodo.org/record ...
Biscoito, Manuel +2 more
openaire +3 more sources
Development and regeneration of the crushing dentition in skates (Rajidae).
Developmental Biology, 2020 Sharks and rays (elasmobranchs) have the remarkable capacity to continuously regenerate their teeth. The polyphyodont system is considered the ancestral condition of the gnathostome dentition.
Liam J. Rasch +5 more
semanticscholar +5 more sources
المجلة العراقية للاستزراع المائي, 2021 This study was performed on Thornback ray (Raja clavata L., 1758) through the period January 2013 - October 2014. It aimed to determine the reproductive cycle , fecundity and to determine median disc width at maturity (DW50 ) of this species.
Adib Saad +3 more
doaj +2 more sources
Revista Chilena de Historia Natural, 2002 Psammobatis extenta es un miembro común de la fauna de rayas de las costas de Sudamérica y su biología ha sido poco estudiada. Se investigaron aspectos de la biología de P.
JUAN M. BRACCINI, GUSTAVO E. CHIARAMONTE
doaj +2 more sources
Do Public Perceptions of the Environment Align With Empirical Measures? [PDF]
J R Soc N ZTo create effective environmental communications and policies, it is crucial to understand how laypeople, scientists, and experts perceive the environment. This study, based on a large‐scale, nationally representative survey from Aotearoa New Zealand and scientific reports and literature, examines the similarities and differences in perceptions across ...
Booth PL, McLeod LJ, Stahlmann-Brown P.
europepmc +2 more sources
Application of spatially robust stereo-BRUV sampling for quantifying fish assemblages in UK marine protected areas. [PDF]
Ecol ApplAbstract Marine protected areas (MPAs) often lack adequate data on the status of marine assemblages to support evidence‐based management. Stereo baited remote underwater video (BRUV) systems offer a powerful, low‐cost tool for collecting ecological data, yet they remain underutilized in the North East Atlantic, especially compared to more invasive ...
Exeter OM +13 more
europepmc +2 more sources
Reproductive period of Dipturus oxyrinchus (Elasmobranchii: Rajidae) in Sardinian seas = Periodo ripèroduttivo di Dipturus Oxyrinchus (Elasmobranchii: Rajidae) nei mari sardi [PDF]
, 2012 The reproduction of longnosed skate, Dipturus oxyrinchus (Elasmobranchik Rajidae) was studied using 334 specimens from Sardinian waters. Total length of females ranged from 130 to 1155 mm and of males ranged from 154 to 995 mm. The analysis of the monthly distribution of maturity. stages shows that this species has a long spawning period.
CABIDDU, SERENELLA +4 more
openaire +2 more sources